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Finding the Fourth Proportional to 118,144.35, 163,043.51 and 67,165.68

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Solution

The fourth proportional to 118,144.35, 163,043.51 and 67,165.68 is: 92,691.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,144.35 : 163,043.51 = 67,165.68 : x
  2. Step 2: Convert to fraction form
    118,144.35/163,043.51 = 67,165.68/x
  3. Step 3: Cross multiply
    118,144.35x = 163,043.51 × 67,165.68
  4. Step 4: Simplify right side
    118,144.35x = 10,950,927,882.91
  5. Step 5: Solve for x
    x = 10,950,927,882.91/118,144.35
  6. Step 6: Final answer
    x = 92,691.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.